Calendar.



P. S. KERR.

CALENDAR.

APPLICATION FILED OCT. 20. 1914.

Patented Aug. 3, 1 915.

UNITED STA PAUL S. KERR, OF DES IVIOINES, IOXVA.

CALENDAR.

Specification of Letters Patent.

Patented A11 3, 1915.

Application filed October 20, 1914. Serial No. 867,611.

To all whom it In 113 concern:

Be it known that I, PAUL S. KERR, citizen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented certain new and useful Improvements in Calendars, of which the following is a specification.

My invention relates to new and useful improvements in calendars, and has its principal object to provide a neat and simply constructed calendar which is particularly adapted for use in otlices and is so designed that, while the, current months chart is the only one normally exposed to view, the charts of any other months of the year may be readily brought to view.

A further and more specific object is to construct a calendar which consists essentially in a body casing having a relatively small glass covered opening, a drum rotatably mounted in the casing and provided on its periphery with charts representing the twelve months of the year, and a gravity actuated device for normally holding the drum in such position that the chart of the current month is exposed to view through the glass revered opening.

The above recited and other incidental objects of a similar nature are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification, and then more particiilarly pointed out in the claims, which are appended hereto and form a part of this application.

\Vith reference to the drawings, wherein there has been illustrated the preferred: embodiment of this invention as it is reduced to practice, and throughout the several views of which similar reference characters designate corresponding parts, Figure 1 is a perspective view illustrating the calendar with the various parts thereof in operative assembled relation, (in this figure the portion of the casing is broken away to more clearly disclose the interior arrangement of the device and the manner in which the month charts are carried by the periphery of thev drum); Fig. 2 is a vertical section taken medially through the device as shown in Fig. 1; and Fig. is a detail perspective view of the weighted arm and disk member which are employed in normally holding the drum in such position that the current month chart is exposed to view.

In the embodiment of my invention shown in the accompanying drawings, and best illustrated as an entirety in Fig. 1 thereof, the device includes as its essential elements a body casing, a drum rotatably mounted therein, and a weighted arm which is employed in a manner to be hereinafter more fully disclosed.

The body casing includes a pair of parallel side walls 10 and 11 which are connected by the parallel end walls 12 and 13. A top wall 11% is secured in fixed position between the upper edges of the walls 10 and 11 by nails or any other suitable fastening devices, indicated at- 15. The corresponding upper corners of the side walls 10 and 11 are cut away to provide an opening, which is covered by a glass closure 16. Through'this glass closure 16, the user of the device may read the calendar in a manner which will be hereinafter explained. In cutting away the upper corners of the walls 10 and 11, the material is cut inwardly at right angles to the vertical and horizontal edges a short distance, as indicated at 17. These straight edges 17 of the walls 10 and 11 are connected by a curved edge 18. Immediately adjacent these curved edges 18 and in the inner faces of the walls 10 and 11 are formed arcuate grooves into which the edge portions of the glass closure 16 are let.

The bottom wall of the casing, designated by the numeral 19, is substantially rectangular and is in ,length equal to the greatest width between the side walls. This wall 19 is held in position by a single catch member 20, the terminals of which are adapted to engage in grooves 21 formed in the inner faces of the side walls 10 and 11 at points slightly above the lower edges thereof. A rivet or similar fastening device '22 is employed in rotatably securing the catch 20 to the lower face of the wall 19, so "that the terminals of the catch 20 may be withdrawn from the grooves or notches 21 when it is desired to remove the bottom wall.

The drum, which is designated in Fig. 1 as an entirety by the numeral 2.3, consists, as best illustrated in Fig. 2, in a hub 21 to the terminals of which are secured a pair of circular plates 25 and 26. A band 27 is secured to the peripheries of the plates 25 and 26 and bridges the space therebetween. On this band 27 are glued or otherwise secured the charts A, which bear the indicia. of the months of the year. The sidewalls 25 and 26 and band 27, which constitute the of diametrically opposed apertures 33. lnterposed between the head 31 of the drum 23, may be formed of sheet metal, cardboard, wood, or any material which is deemed suitable.

The hub 24 of the drum ,is keyed in any suitable manner on a shaft or axle 28, the terminals of which extend through diametrically opposed openings formed in the side walls 10 and 11 at the approximate centers thereof. The one terminal of the axle 28, indicated at 29, is threaded and receives a nut 30 which serves, as will be obvious upon reference to Fig. 2, to hold the shaft or axle against withdrawal.- The other terminal of the axle 28 is headed, as indicated at 31, and

is received within a sleeve 32 which passes -through the central opening of the side wall 11.- A pin 32 keys the sleeve 32 on the shaft. On the outer terminal of this sleeve 32 is formed a circular plate 33, which is pro-.

vided with a central opening 34 and a pair axle and the plate 33 is a clutch disk 35,

. I which is secured to the plate by rivets 36.

This clutch disk 35 is preferably formed of metal and is provided at its periphery with a plurality of radially extending, uniformly spaced slots 36. These slots are twelve in number, corresponding to the number of months in a year, and are each adapted to receive a pawl or tooth 37 which is formed on the weighted arm 38. The arm 38 is preferably formed from a strip of resilient metal and is provided at its upper terminal with an aperture 39. This aperture 39 freely receives the axle 28, as will be obvious upon reference to either Figs. 1 or 2. A

washer 10-may be interposed between the .head 31 of the axle and the arm.38. An enlargement, indicated at 41, isprovided for the lower terminal of the arm 38. This enlargement provides a weight which normally acts, as disclosed'in Flg. 1, to hold the arm 38 in depending'pvertical posit10n.

The actual construction and arrangement of the several parts of theinvention being thus disclosed, the mannerin which the calendar is used is now to be explained. In this connection, it will, of course, be apparentthat, since the arm 38 is formed from resili-' -4mt-metal, it may be manipulated to withi. it

drawtheteoth 37 from engagement with the disk 35 so as to permit the rotation of the arm for engaging the tooth 37 with any desired notch. Inasmuch as the clutch disk. is provided with twelve notches, it is obvious that the tooth- 37 may be so arranged with .respect to thedisk as to cause the arm 38 to yieldably hold any desired month chart in position behind the-glass closure. The arm '38 constitutes a hang/1e by which the drum may be rotated, whe tlesired, so as to bring he desired month chart into view, It is to he 4. tedfthat immediately upon releasing the arm 38 .after'the perusal of the past or future month charts, the weight 4.1 will swing down and return the current month chart into position behind the member 16.

In reduction to practice, it has beenfound that the form of this invention illustratedin the drawings, and referred to in the above descriptibn as the preferred embodiment, is

the most eflicient and practical; yet realizing that the conditions concurrent with the adoption of this device will n'ecessaril vary, it is desirable to emphasize the fact t at various minor changes in details of constructlon, proportlon and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of this invention, as defined in the appended claims.

Having thus described the inventiomwhat is claimed as new is 1. A :calendar including a casing, a drum' .85

rotatably mounted therein, charts represent= ing the twelve months of a year carried by the periphery of the drum, there'bein'g a sight opening formed in the casing, and

gravity actuated means operatively connect ed to the drum whereby the current month chart may be normally held at the sight opening. I

.2. A calendar including a casing having a sight opening, a drum rotatably mounted in the casing, said drum including ahub, parallel sidewalls secured to the hub, and a band attached to the peripheries of the side walls and bridging the space thereb etween,

ing spaced side walls and a band connecting the said walls at their peripheries, said band being provided with twelve charts representing the twelve months of a year, a weighted arm freely secured to the outer terminal of the axle, and adjustable means for normally holding the arm against rotation with re- Spect to the axle wherieby the arm may be adjusted to normally and yieldably hold the current month chart of the drum in position behind the sight opening.

4. A calendar including a casing having a sight opening, an axle journaled n the easing, a drum mounted on the axle and having twelve charts representing the twelve axle exteriorly of the casing, a resilient arm freely mounted on the axle and having a pawl member engageable with the disk, and

a weight carried by the outer terminal of the its months of a year, a clutch disk keyed on the I arm, said weighted arm actingby gravity to normally hold the current month chart of the drum in position behind the s ght openin y g A device 'of the character described including a freely rotatable, drum, a chart carried by the drum, and means operatively connected to the drum and arrangedto rotate freely therewith, the said means gravitatin'g when rotated in either direction to normally hold the drum stationary with the chart presented to view.

*6. A device'of thecharacter described including a freely rotatable drum, a chart carried thereby, and means mounted to rotate freely with the drum around the axis thereof, said means having operative connection with the drum for adjustment vat spaced points around a circle concentric to the axis of the drum and gravitating when rotated in either direction to normally hold the drum stationary with the chart presented to view.

7. A device of the character described including a freely rotatable-drum, achart carried thereby, and means having operative yieldable connection with the drumto rotate freely therewith, the said means gravitating when rotated in either direction to hold the drum stationary with the chart presented to view.

8. A device of the character described including a freely rotatable drum, spaced charts carried by the drum, and means op eratively connected to the drum and arranged to rotate freely therewith, the said means gravitating when rotated in either direction to normally hold the drum stationary for selectively maintaining the charts presented to view. 7

9. A device of the character described in cluding a freely rotatable drum, a chart carried thereby, a clutch disk mounted to rotate with the drum, and means engaging said disk to rotate freely therewith and with the drum, the said means gravitating when rotated in either direction to normally hold the drum stationary with the chart presented to view.

10. A device of the character described including a freely rotatable drum, spaced charts carried thereby, a clutch disk mounted to rotate with the drum, and means having adjustable engagement with the disk and arranged to rotate freely therewith and with the drum, the said means gravitating when rotated in either direction to normally hold the drum stationery, for selectively maintaining the charts presented to view.

11. A device of the character described including a freely rotatable drum, a chart carr'ied thereby, a clutch disk mounted to rotate with the drain and provided with a notch, a freely mounted fweighted arm, and a laterally projecting tooth carried by said arm and adapted to engage in said notch for operatively connecting the arm with the drum to rotate freely therewith, the said arm gravitating when rotated in either direction to normally hold the drum stationary with the chart presented to view.

12. A device of the character described including a freely rotatable drum, a chart carried thereby, a clutch disk mounted to rotate With the drum and having a notch formed therein, freely mounted gravity actuated means, and a tooth carried by said means and yieldably held thereby in engagement with said notch for operatively connecting the said means with the drum to rotate freely therewith, the said means gravitating when rotated in either direction to normally hold the drum stationary with the chart presented to view.

In testimony whereof I afiix my signature in presence of two witnesses.

ram s. KERR. {13.8.1

Witnesses JOHN B. Dnrnw, MARION A. Nrrrrnns. 

